CVE-2026-93593
ArcadeDB before 26.9.1 fails to enforce security-group types ACL entries for TimeSeries types because the ACL resolver builds permissions from bucket IDs, but TimeSeries types do not own normal record buckets. An authenticated low-privilege user can read or insert TimeSeries samples despite explicit deny rules by exploiting the missing type-name-based access check that causes permission lookups to fail open.
- Published Sep 18, 2026
- CVSS 8.6 high
- 0.4% chance of exploitation in the next 30 days (EPSS)
- A fix is available